Zefnir 300 Capsule
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Quick Facts
About Zefnir 300 Capsule
Zefnir 300 Capsule is an antibiotic medicine used to treat a variety of bacterial infections. It is effective in infections of the respiratory tract (eg. pneumonia), urinary tract, ear, nasal sinus, throat, and some sexually transmitted diseases.Zefnir 300 Capsule may be taken with or without food. You should take it regularly at evenly spaced intervals as per the schedule prescribed by your doctor. Taking it at the same time every day will help you to remember to take it. The dose will depend on what you are being treated for, but you should always complete a full course of this antibiotic as prescribed by your doctor. Do not stop taking it until you have finished, even when you feel better. If you stop taking it early, some bacteria may survive and the infection may come back.The most common side effects of this medicine include rash, allergic reaction, nausea, and diarrhea. These are usually mild but let your doctor know if they bother you or last more than a few days.Before using it, you should tell your doctor if you are allergic to any antibiotics or have any kidney or liver problems. You should also let your healthcare team know all other medicines you are taking as they may affect, or be affected by, this medicine. Pregnant and breastfeeding mothers should consult their doctor before using it. Avoid consuming alcohol while taking this medicine as it may cause unpleasant side effects like nausea, vomiting, sweating, anxiety, and palpitations.
How It Works
Zefnir 300 Capsule is an antibiotic medicine used to treat a variety of bacterial infections. It is effective in infections of the respiratory tract (eg. pneumonia), urinary tract, ear, nasal sinus, throat, and some sexually transmitted diseases.Zefnir 300 Capsule may be taken with or without food. You should take it regularly at evenly spaced intervals as per the schedule prescribed by your doctor. Taking it at the same time every day will help you to remember to take it. The dose will depend on what you are being treated for, but you should always complete a full course of this antibiotic as prescribed by your doctor. Do not stop taking it until you have finished, even when you feel better. If you stop taking it early, some bacteria may survive and the infection may come back.The most common side effects of this medicine include rash, allergic reaction, nausea, and diarrhea. These are usually mild but let your doctor know if they bother you or last more than a few days.Before using it, you should tell your doctor if you are allergic to any antibiotics or have any kidney or liver problems. You should also let your healthcare team know all other medicines you are taking as they may affect, or be affected by, this medicine. Pregnant and breastfeeding mothers should consult their doctor before using it. Avoid consuming alcohol while taking this medicine as it may cause unpleasant side effects like nausea, vomiting, sweating, anxiety, and palpitations.
How to Use
Take this medicine in the dose and duration as advised by your doctor. Zefnir 300 Capsule may be taken with or without food, but it is better to take it at a fixed time.
What if you miss a dose?
If you miss a dose of Zefnir 300 Capsule, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular schedule. Do not double the dose.
Storage
Store below 30C
Prescription required. Upload a valid prescription at checkout or via prescription upload.
Composition of Zefnir 300 Capsule
Uses of Zefnir 300 Capsule
Key Benefits of Zefnir 300 Capsule
- In Bacterial infections Zefnir 300 Capsule works by killing the infection-causing bacteria in your body. It is effective for bacterial infections of the lungs, throat, and urinary tract among others. This medicine usually makes you feel better within a few days, but you should continue taking it as prescribed even when you feel better. Stopping it early may make the infection come back and harder to treat.
Side Effects of Zefnir 300 Capsule
- Nausea
- Diarrhea
- Headache
- Vaginal moniliasis
- Abdominal pain
- Vaginal inflammation
- Protein in urine
- Increased gamma-glutamyltransferase
- High lymphocyte count
- Lymphocytopenia
- Microhematuria
- Increased urine leukocytes
This is not a complete list of side effects. Consult your doctor if you experience any unusual symptoms.
Safety Advice for Zefnir 300 Capsule
Zefnir 300 Capsule may cause excessive drowsiness with alcohol.
Zefnir 300 Capsule is generally considered safe to use during pregnancy. Animal studies have shown low or no adverse effects to the developing baby; however, there are limited human studies.
Zefnir 300 Capsule is safe to use during breastfeeding. Human studies suggest that the drug does not pass into the breastmilk in a significant amount and is not harmful to the baby.Avoid prolonged use of Zefnir 300 Capsule, since it may have possible effects such as rash and diarrhea.
Zefnir 300 Capsule may decrease alertness, affect your vision or make you feel sleepy and dizzy. Do not drive if these symptoms occur.
Zefnir 300 Capsule should be used with caution in patients with kidney disease. Dose adjustment of Zefnir 300 Capsule may be needed. Please consult your doctor.
Zefnir 300 Capsule is probably safe to use in patients with liver disease. Limited data available suggests that dose adjustment of Zefnir 300 Capsule may not be needed in these patients. Please consult your doctor.
Frequently Asked Questions
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Medical information standards
Educational product information for Zefnir 300 Capsule. Not a substitute for advice from your treating doctor or healthcare provider.
- Reviewed by
- Nitin Kumar, D.Pharm (UPPC Reg: 63405)Lead Registered Pharmacist · 11 years clinical experience · Drug licence RLF21DL2025001406, RLF20DL2025001420. See our medical review policy.
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Authoritative references
- CDSCO (India) — Central Drugs Standard Control Organisation — Indian drug regulator
- Ministry of Health & Family Welfare — Government of India health ministry
- WHO Essential Medicines — World Health Organization essential medicines lists
- National Health Portal (India) — Government of India National Health Portal